National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

14°F

-10°C

Humidity 77%
Wind Speed NW 7 mph
Barometer 29.92 in (1013.4 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 29 Jan 6:56 am EST
Extended Forecast for

South Dennis MA

  • Today

    Today: A slight chance of snow before noon. Partly sunny, with a high near 24. Northwest wind 10 to 14 mph. Chance of precipitation is 20%.

    High: 24 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 7. Wind chill values as low as -5. West wind 9 to 13 mph, with gusts as high as 24 mph.

    Low: 7 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 18. Wind chill values as low as -6. West wind 9 to 13 mph, with gusts as high as 24 mph.

    High: 18 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 7. Wind chill values as low as -1. West wind 6 to 8 mph, with gusts as high as 21 mph.

    Low: 7 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 26. West wind around 6 mph becoming calm in the afternoon.

    High: 26 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of snow, mainly after 1am. Mostly cloudy, with a low around 17. Light north wind becoming northeast 8 to 13 mph in the evening. Winds could gust as high as 28 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 17 °F

    Chance Snow

  • Sunday

    Sunday: Snow likely. The snow could be heavy at times. Cloudy, with a high near 31. Windy, with a north wind 17 to 26 mph, with gusts as high as 46 mph. Chance of precipitation is 70%.

    High: 31 °F

    Heavy Snow
    and Windy

  • Sunday Night

    Sunday Night: Snow likely, mainly before midnight. Cloudy, with a low around 23. Blustery, with a north wind 16 to 24 mph, with gusts as high as 46 mph. Chance of precipitation is 70%.

    Low: 23 °F

    Snow Likely
    and Blustery

  • Monday

    Monday: Partly sunny, with a high near 33. Northwest wind 9 to 14 mph, with gusts as high as 28 mph.

    High: 33 °F

    Partly Sunny

Detailed Forecast

Today
A slight chance of snow before noon. Partly sunny, with a high near 24. Northwest wind 10 to 14 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 7. Wind chill values as low as -5. West wind 9 to 13 mph, with gusts as high as 24 mph.
Friday
Sunny, with a high near 18. Wind chill values as low as -6. West wind 9 to 13 mph, with gusts as high as 24 mph.
Friday Night
Partly cloudy, with a low around 7. Wind chill values as low as -1. West wind 6 to 8 mph, with gusts as high as 21 mph.
Saturday
Mostly sunny, with a high near 26. West wind around 6 mph becoming calm in the afternoon.
Saturday Night
A chance of snow, mainly after 1am. Mostly cloudy, with a low around 17. Light north wind becoming northeast 8 to 13 mph in the evening. Winds could gust as high as 28 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Sunday
Snow likely. The snow could be heavy at times. Cloudy, with a high near 31. Windy, with a north wind 17 to 26 mph, with gusts as high as 46 mph. Chance of precipitation is 70%.
Sunday Night
Snow likely, mainly before midnight. Cloudy, with a low around 23. Blustery, with a north wind 16 to 24 mph, with gusts as high as 46 mph. Chance of precipitation is 70%.
Monday
Partly sunny, with a high near 33. Northwest wind 9 to 14 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 21. Northwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 33. West wind 6 to 8 mph.
Tuesday Night
Mostly cloudy, with a low around 22. Northwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 31. Northwest wind 6 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
3:45 am EST Jan 29, 2026
Forecast Valid:
7am EST Jan 29, 2026-6pm EST Feb 4, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation